Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 8608 1247 14% 0.00 1635 804 49% 6.8
10 Kinds of People 19879 4055 20% 0.01 3358 2430 72% 4.2
2048 8453 3927 46% 0.00 3738 3206 86% 2.1
3D Printed Statues 10183 4669 46% 0.00 4287 3837 90% 2.0
3D Printer 749 137 18% 0.00 303 105 35% 8.6
3-Sided Dice 2386 202 8% 0.00 390 141 36% 8.6
4 thought 8621 2899 34% 0.00 2860 2383 83% 2.8
A1 Paper 5366 1560 29% 0.00 1554 1229 79% 3.9
Aaah! 28827 13373 46% 0.00 11935 11127 93% 1.5
Abandoned Animal 2015 440 22% 0.03 505 367 73% 5.1
ABC 13799 6244 45% 0.00 5895 5363 91% 1.9
Ab Initio 1132 214 19% 0.09 171 106 62% 7.5
Above Average 9038 3691 41% 0.00 3643 3265 90% 2.0
A+B Problem 8064 805 10% 0.03 1136 378 33% 8.2
A Brief Gerrymander 220 46 21% 0.15 55 31 56% 9.0
Abstract Art 377 118 31% 0.00 99 76 77% 5.5
Abstract Painting 379 149 39% 0.00 143 110 77% 4.9
Absurdistan Roads II 604 212 35% 0.00 207 141 68% 6.8
Absurdistan Roads III 1542 445 29% 0.02 414 316 76% 5.5
Access Points 418 145 35% 0.01 138 107 78% 5.6
A Classy Problem 9835 2460 25% 0.01 2174 1667 77% 4.4
ACM Contest Scoring 6921 4293 62% 0.00 3801 3587 94% 1.5
Add 'Em Up! 886 252 28% 0.01 252 195 77% 4.1
Adding Words 10847 2564 24% 0.00 2470 1902 77% 4.1
A Different List Game 6879 486 7% 0.00 864 175 20% 9.2
A Different Problem 31018 11396 37% 0.00 10533 9124 87% 2.7
Adjoin the Networks 2116 560 26% 0.00 468 375 80% 5.3
Administrative Difficulties 1255 273 22% 0.03 290 199 69% 6.2
Advanced Causal Measurements 114 36 32% 0.10 33 27 82% 5.9
Adventure Begins 265 86 32% 0.06 90 69 77% 4.4
Adventures in Moving -- Part IV 1369 312 23% 0.00 272 226 83% 4.6
A Favourable Ending 1664 432 26% 0.00 396 306 77% 4.5
A Feast For Cats 2275 812 36% 0.00 557 470 84% 4.0
A Flea on a Chessboard 446 97 22% 0.01 106 77 73% 5.8
AI Jeopardy 214 39 18% 0.02 35 28 80% 6.6
Air Conditioned Minions 5152 1419 28% 0.00 1490 1126 76% 4.0
Airline Hub 1821 338 19% 0.01 371 212 57% 6.6
Airport Coffee 875 188 21% 0.09 176 125 71% 7.0
Airport Construction 3484 451 13% 0.02 374 201 54% 7.5
Airport Logistics 67 15 22% 0.00 22 15 68% 7.3
Airports 486 150 31% 0.11 130 94 72% 6.4
Akcija 7521 3353 45% 0.00 3037 2704 89% 2.0
Aladin 761 78 10% 0.10 125 30 24% 8.3
Alchemy 136 24 18% 0.02 36 21 58% 7.5
Alea iacta est 41 15 37% 0.19 18 14 78% 6.5
Alehouse 304 108 36% 0.03 91 66 73% 6.0
Alex and Barb 183 54 30% 0.00 75 50 67% 6.3
Alice in the Digital World 4739 1100 23% 0.01 997 771 77% 4.3
Alien Codebreaking 242 14 6% 3.23 42 11 26% 9.2
Alien Numbers 2317 1187 51% 0.00 1166 1056 91% 2.1
A List Game 8331 2453 29% 0.00 2334 1960 84% 3.0
All about that base 2885 1141 40% 0.00 1110 934 84% 2.9
All Different Directions 1348 558 41% 0.00 520 457 88% 2.6
Allergy Test 532 139 26% 0.00 162 85 52% 7.3
All Friends 876 164 19% 0.00 157 79 50% 8.9
All is Well 85 25 29% 0.03 23 21 91% 4.9
All Just A Dream 1982 448 23% 0.05 319 225 71% 6.3
All Kill 21 16 76% 0.00 15 14 93% 4.6
Alloys 255 88 35% 0.00 89 77 87% 4.7
All Pairs Shortest Path 9038 1610 18% 0.00 1110 784 71% 5.7
Almost Perfect 7943 1849 23% 0.00 1959 1545 79% 3.3
Almost Union-Find 6788 1202 18% 0.02 1102 629 57% 7.2
Alphabet 1583 789 50% 0.00 808 681 84% 3.2
Alphabet Animals 1956 613 31% 0.00 607 488 80% 3.4
Alphabet Spam 8124 5017 62% 0.00 4128 3964 96% 1.4
Alternative Bracket Notation 209 89 43% 0.00 95 79 83% 5.1
Altruistic Amphibians 402 109 27% 0.22 100 73 73% 5.0
Amalgamated Artichokes 4097 1828 45% 0.01 1616 1413 87% 2.7
Amanda Lounges 1460 426 29% 0.03 388 310 80% 5.4
A Mazing! 2674 604 23% 0.09 288 218 76% 5.2
Amazing Adventures 371 99 27% 0.02 111 79 71% 6.0
Amazing Race 332 88 27% 0.29 92 65 71% 7.5
Ambiguous Result 265 57 22% 0.02 88 54 61% 8.1
Amsterdam Distance 1532 681 44% 0.00 705 583 83% 2.9
A Multiplication Game 753 258 34% 0.00 289 217 75% 4.7
Anagram Counting 3651 1400 38% 0.00 1359 1130 83% 3.2
Andrew the Ant 343 91 27% 0.06 102 79 77% 3.8
A New Adventure 974 149 15% 0.00 163 109 67% 6.1
A New Alphabet 10962 4905 45% 0.00 4542 4198 92% 1.7
An I for an Eye 741 180 24% 0.00 208 145 70% 5.0
Animal Classification 1566 355 23% 0.03 308 203 66% 6.8
An Industrial Spy 1663 881 53% 0.02 665 572 86% 3.2
Another Brick in the Wall 3304 1640 50% 0.00 1576 1441 91% 1.9
Another Candies 8066 2208 27% 0.00 2254 1867 83% 2.7
Another Coin Weighing Puzzle 319 106 33% 0.01 92 79 86% 4.4
Another Dice Game 108 69 64% 0.00 67 58 87% 4.7
Another Query on Array Problem 1603 216 13% 0.05 334 151 45% 7.6
Antenna Placement 139 64 46% 0.00 44 36 82% 5.2
Anthony and Cora 925 247 27% 0.00 284 204 72% 5.2
Anthony and Diablo 3198 1104 35% 0.00 1110 961 87% 2.4
Antiarithmetic? 1535 279 18% 0.01 345 199 58% 7.2
Ants 3691 1637 44% 0.00 1322 1155 87% 2.5
Apaxiaaaaaaaaaaaans! 13217 8064 61% 0.00 7144 6838 96% 1.4
Apostrophe Catastrophe 112 26 23% 0.00 29 19 66% 6.8
Appalling Architecture 679 202 30% 0.00 172 144 84% 4.0
Apparatus 701 173 25% 0.01 143 105 73% 5.9
Apple Market 474 99 21% 0.07 121 62 51% 8.2
Apples, Cherries, and Mangos 417 126 30% 0.02 133 93 70% 6.8
A Prize No One Can Win 2845 1105 39% 0.00 930 818 88% 2.5
Aquarium Tank 513 148 29% 0.00 141 112 79% 4.9